xerox.fr

Checked 22 October 2026, 06:00 UTC · via 8.8.8.8
✗Problems found
24 passed 3 warnings 1 failed 3 info

Registration

info

.fr country-code · MARKMONITOR Inc. · expires 2027-04-16

Found

TLD
.fr (country-code)
ICANN policies apply
no
Registrar
MARKMONITOR Inc.
Registered
31 December 1994
Last changed
25 May 2025
Expires
16 April 2027
Status
client update prohibited, client transfer prohibited, client delete prohibited
Registry nameservers
adrastea.xerox.com, ash.xerox.com, carme.xerox.com, curly.xerox.com, gum.xerox.com, shemp.xerox.com
RDAP server
https://rdap.nic.fr/

Checks

  • i
    .fr is a country-code TLD (ccTLD)
    Country-code TLD: governed by its local registry under national policy, not by an ICANN contract. Registrar accreditation, dispute resolution and RDAP/WHOIS rules are set by the registry.
    #1
  • ✓ TLD delegated and signed #2
    .fr is delegated in the root zone and DNSSEC-signed.
  • ✓ Expires on 2027-04-16 #3
    The registration is valid until 2027-04-16 (176 days).
  • ✓ Transfer locked #4
    Registry status: client update prohibited, client transfer prohibited, client delete prohibited.
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

warn

adrastea.xerox.com, ash.xerox.com, carme.xerox.com, curly.xerox.com, gum.xerox.com, shemp.xerox.com

Found

Parent zone
fr
Delegation from
d.nic.fr (194.0.9.1)
NS at the parent
adrastea.xerox.com, ash.xerox.com, carme.xerox.com, curly.xerox.com, gum.xerox.com, shemp.xerox.com
NS in the zone
adrastea.xerox.com, ash.xerox.com, carme.xerox.com, curly.xerox.com, gum.xerox.com, shemp.xerox.com
NameserverAddressesNetwork (AS)Glue
adrastea.xerox.com13.13.138.33AS22390 XEROX-WB - XEROX CORPORATION, US-
ash.xerox.com13.8.138.10AS26662 XEROX-WV - XEROX CORPORATION, US-
carme.xerox.com13.13.138.34AS22390 XEROX-WB - XEROX CORPORATION, US-
curly.xerox.com13.13.138.12AS22390 XEROX-WB - XEROX CORPORATION, US-
gum.xerox.com13.8.138.11AS26662 XEROX-WV - XEROX CORPORATION, US-
shemp.xerox.com13.8.138.8AS26662 XEROX-WV - XEROX CORPORATION, US-

Checks

  • ✓ 6 nameservers #6
    Delegated to adrastea.xerox.com, ash.xerox.com, carme.xerox.com, curly.xerox.com, gum.xerox.com, shemp.xerox.com.
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • ✓ No glue needed #8
    All nameservers are outside the zone, so no glue records are needed.
  • ✓ All names resolve #9
    Every nameserver name has an address and is not an alias.
  • ✓ Nameservers in different networks #10
    The nameservers are spread over 2 IPv4 /24s and 0 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS22390 (XEROX-WB - XEROX CORPORATION, US): 3 addresses; AS26662 (XEROX-WV - XEROX CORPORATION, US): 3 addresses.
  • i
    All nameserver names under .com
    All nameserver names are under one TLD, so a problem with that TLD also makes the nameservers unreachable. Some operators use names under two TLDs for extra resilience.
    #12
  • !
    No IPv6
    None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.
    #13

Nameservers

fail

6 of 6 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
adrastea.xerox.com 13.13.138.33NOERROR, 94 ms, authoritativenoyes / yesrefused9.11.36-RedHat-9.11.36-16.el8_10.14
ash.xerox.com 13.8.138.10NOERROR, 169 ms, authoritativenoyes / yesrefused9.11.36-RedHat-9.11.36-16.el8_10.14
carme.xerox.com 13.13.138.34NOERROR, 99 ms, authoritativenoyes / yesrefused9.11.36-RedHat-9.11.36-16.el8_10.14
curly.xerox.com 13.13.138.12NOERROR, 98 ms, authoritativenono / yesrefused9.11.36-RedHat-9.11.36-16.el8_10.14
gum.xerox.com 13.8.138.11NOERROR, 170 ms, authoritativenoyes / yesrefused9.11.36-RedHat-9.11.36-16.el8_10.14
shemp.xerox.com 13.8.138.8NOERROR, 171 ms, authoritativenono / yesrefused9.11.36-RedHat-9.11.36-16.el8_10.14

Checks

  • ✓ All respond #14
    All 6 nameserver addresses answered.
  • ✓ All authoritative #15
    Every responding nameserver answers authoritatively for the zone.
  • ✓ No recursion #16
    The nameservers do not answer recursive queries for other domains.
  • !
    Software version disclosed
    These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: adrastea.xerox.com: "9.11.36-RedHat-9.11.36-16.el8_10.14"; ash.xerox.com: "9.11.36-RedHat-9.11.36-16.el8_10.14"; carme.xerox.com: "9.11.36-RedHat-9.11.36-16.el8_10.14"; curly.xerox.com: "9.11.36-RedHat-9.11.36-16.el8_10.14"; gum.xerox.com: "9.11.36-RedHat-9.11.36-16.el8_10.14"; shemp.xerox.com: "9.11.36-RedHat-9.11.36-16.el8_10.14". Hide or replace the version string.
    #17
  • ✓ Zone transfers refused #18
    No nameserver allows a zone transfer to the public.
  • ✗
    No DNS over TCP
    DNS over TCP is required (RFC 7766); without it, large answers such as DNSSEC responses fail. Not answering over TCP: curly.xerox.com (13.13.138.12): dial tcp 13.13.138.12:53: connect: connection refused; shemp.xerox.com (13.8.138.8): dial tcp 13.8.138.8:53: connect: connection refused.
    #19
  • ✓ EDNS supported #20
    All nameservers support EDNS(0).
  • ✓ Public addresses #21
    All nameserver addresses are publicly routable.

SOA

pass

serial 2026090901 · primary adrastea.xerox.com

Found

Primary (MNAME)
adrastea.xerox.com
Contact (RNAME)
hostmaster.xerox.com
Serial
2026090901
Refresh / retry
10800 s / 1800 s
Expire
604800 s
Negative TTL
14400 s

Serial per nameserver

NameserverSerial
adrastea.xerox.com (13.13.138.33)2026090901
ash.xerox.com (13.8.138.10)2026090901
carme.xerox.com (13.13.138.34)2026090901
curly.xerox.com (13.13.138.12)2026090901
gum.xerox.com (13.8.138.11)2026090901
shemp.xerox.com (13.8.138.8)2026090901

Checks

  • ✓ Serial 2026090901 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 3h, retry 30m, expire 7d, negative TTL 4h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver adrastea.xerox.com is one of the listed nameservers.
  • ✓ Contact hostmaster@xerox.com #25
    The SOA RNAME hostmaster.xerox.com means hostmaster@xerox.com.
  • ✓ Date-based serial #26
    The serial 2026090901 follows the YYYYMMDDnn convention (2026-09-09).

DNSSEC

warn

Not signed

Found

Validated by resolver
no

Checks

  • !
    Not signed
    The zone is not signed with DNSSEC, so answers can be spoofed. Enable DNSSEC at your DNS provider and publish the DS record at your registrar.
    #27

Records

info

15 records at the apex

Found

Read from
13.13.138.33:53
TypeValueTTL
SOAadrastea.xerox.com. hostmaster.xerox.com. 2026090901 10800 1800 604800 1440014400
NSgum.xerox.com.14400
NScarme.xerox.com.14400
NScurly.xerox.com.14400
NSshemp.xerox.com.14400
NSadrastea.xerox.com.14400
NSash.xerox.com.14400
A13.8.57.46300
A13.13.57.46300
MX10 mx2.xrx.fr.14400
MX5 app01.xerox.fr.14400
TXT"google-site-verification=KDhTh5v-bcmYNoekQ-3inQeHX1R0hMr_i7cvkCxP0AI"14400
TXT"38240 Meylan FRANCE"14400
TXT"Xerox Researh Centre Europe"14400
TXT"6, Chemin de maupertuis"14400

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, MX 4h, NS 4h. The NS TTL at the parent is 1h and in the zone 4h; resolvers may use either.
  • ✓ No CNAME at the apex #33
    The zone apex has no CNAME record.
  • ✓ No wildcard #34
    Names that don't exist return NXDOMAIN.
  • i
    No CAA records
    Without CAA records any certificate authority may issue certificates for this domain. A CAA record limits issuance to the CAs you use.
    #35